hardcover (plasticized cardboard) 1 elastic again provided - on the photo that is what serve to hold the pen This additional elastic is not a luxury! quadrille with 1 block, 1 block and 2 white lineage blocks, the book does not remain closed (s opens slightly), unlike the foto (or it contains only 3 blocks)
otherwise: quality, good paper, easy to replace rigid numerous, easy to find accessories and books
Downsides: - Impossible to leave as 3 books, the notches deform if removed 1 and elastic block that goes with - The elastic of "closure" is not very convenient